CN104401495A - Plunger joint throttler and use method thereof - Google Patents
Plunger joint throttler and use method thereof Download PDFInfo
- Publication number
- CN104401495A CN104401495A CN201410588457.9A CN201410588457A CN104401495A CN 104401495 A CN104401495 A CN 104401495A CN 201410588457 A CN201410588457 A CN 201410588457A CN 104401495 A CN104401495 A CN 104401495A
- Authority
- CN
- China
- Prior art keywords
- restrictor
- hold
- down nut
- plunger connector
- counterbore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Valve Housings (AREA)
Abstract
The invention provides a novel plunger joint throttler and a use method thereof. The plunger joint throttler comprises a plunger joint, a compressing nut and a throttling ring, wherein the throttling ring is arranged in the plunger joint, and is compressed by the compressing nut; after the flow resistance debugging is finished, the punching fixation is performed in the position, where the throttling ring is compressed by the compressing nut, so that the situation that a product-state throttling ring position is consistent with a debugging-state throttling ring position is guaranteed. According to the plunger joint throttler and the use method, a throttler and the plunger joint are integrally designed; the plunger joint throttle is suitable for outlet pipeline sealing connection and system pipeline flow resistance adjustment of an aircraft propellant tank; the plunger joint throttle is compact and small in integral structure, is light in weight, is high in reliability, and is suitable for the flow resistance adjustment of the aircraft propellant tank.
Description
Technical field
The present invention relates to throttling technology, particularly, relate to a kind of plunger connector air restrictor and using method thereof.
Background technology
The propellant tank outlet of aerospacecraft propulsion system is lived in connecting and is generally adopted plunger connector, plunger connector adopt one aluminium backing side seal and together with O shape enclose radial seal, the leak tightness of reservoir outlet can be ensured.Plunger connector downstream connects propellant outlet pipe, needs the requirement regulating to meet downstream inlet pressure to the flow resistance on fluid flow tube road, downstream simultaneously.At present, pipeline flow resistance regulates and can realize by regulating restrictor, published restrictor mounting structure is generally divided into two kinds: 1) install restrictor at valve place, and basic structure feature installs restrictor in the inflow point of valve, is welded and fixed after debugging meets the demands.Such structural adjustment is loaded down with trivial details, needs to readjust after changing valve; 2) go out restrictor is installed at motor inlet, also there is the problem of dismounting inconvenience.
Existing structure is all go out to install restrictor at valve or motor inlet, comparatively large to the dependence of valve or driving engine, once change, so needs again to debug flow resistance.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of plunger connector air restrictor installing flow resistance debugging restrictor.
According to a kind of plunger connector air restrictor provided by the invention, comprising: plunger connector 1, hold-down nut 2 and restrictor 3;
The head of plunger connector 1 is provided with counterbore for placing restrictor 3 and for installing the mounting groove needed for hold-down nut 2;
Restrictor 3 is arranged in the counterbore of plunger connector 1, and is pressed at the bottom of counterbore hole by hold-down nut 2;
By the negative thread of the outside thread of hold-down nut 2 and the mounting groove of plunger connector 1, be threaded between the mounting groove of hold-down nut 2 and plunger connector 1.
Preferably, the mounting groove size of the thickness of restrictor 3, the thickness of hold-down nut 2, plunger connector 1, counterbore size and mounting groove dimension of inner screw thread, meet after hold-down nut 2 is tightened against mounting groove, the end face that the end face of hold-down nut 2 is corresponding to negative thread flushes;
The hole size of hold-down nut 2 is greater than the maximum use aperture of restrictor 3;
The inner port edge of restrictor 3 is sharp edge;
Free-running fit is adopted between restrictor 3 and counterbore.
According to the invention provides to the using method of above-mentioned plunger connector air restrictor, comprise the steps:
Step 1: be fit into by restrictor 3 in the counterbore of plunger connector 1, carries out flow resistance tentative calculation to determine the pore diameter range of restrictor 3, wherein, adopts gap fiting mode to install between restrictor 3 and counterbore;
Step 2: restrictor 3 is by the pre-holes drilled through of minimum value of described pore diameter range;
Step 3: hold-down nut 2 is tightened against in mounting groove to compress restrictor 3 at the bottom of the hole of counterbore;
Step 4: hold-down nut 2 is rushed a little.
Compared with prior art, the present invention has following beneficial effect:
(1) in plunger connector inside, restrictor is installed, realizes the flow resistance value debugging of pipeline, and do not increase the extra weight of system;
(2) during flow resistance debugging, restrictor easy accessibility, and can repeated disassembled and assembled;
(3) simple and compact for structure, compact, production and processing convenience.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural principle schematic diagram of plunger connector air restrictor provided by the invention.
In figure:
1 is plunger connector;
2 is hold-down nut;
3 is restrictor.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
The present invention is by the integrated design of plunger connector and air restrictor, and restrictor is arranged on plunger connector inside, and the debugging of its compact conformation, compact, flow resistance is convenient, is specially adapted to that reliability requirement is higher, on the spacecraft propulsion system of general assembly compact in design.
Plunger connector air restrictor, comprises plunger connector, hold-down nut and restrictor, and its feature is: restrictor position design is inner at plunger connector, is compressed by hold-down nut; Hold-down nut is helicitic texture, can dismounting, carries out dismounting when changing restrictor to hold-down nut; Plunger connector, for ensureing propellant tank exit seal, connects reservoir outlet pipe simultaneously.
More specifically, as shown in Figure 1, plunger connector air restrictor provided by the invention, forms primarily of plunger connector 1, hold-down nut 2 and restrictor 3, and restrictor 3 is arranged in the counterbore of plunger connector inside, is compressed by hold-down nut 2.Pulling down hold-down nut 2 and change restrictor 3 during flow resistance debugging, changing system flow resistance by regulating the hole size of restrictor 3; Flow resistance has been debugged and has been rushed a little to hold-down nut 2, with fixed restriction circle 3 afterwards.
Further, plunger connector is for connecting propellant tank export pipeline, and built-in restrictor is for regulating outlet pipe down-stream system flow resistance.The counterbore that plunger connector head design places restrictor and the negative thread installed needed for hold-down nut.Restrictor is arranged in plunger connector head counterbore.Hold-down nut and plunger connector internal whorl coordinate to be tightened.
The mounting groove size of the thickness of restrictor 3, the thickness of hold-down nut 2 and plunger connector 1, counterbore size and dimension of inner screw thread should meet hold-down nut 2 tighten after and negative thread end face, flow resistance is facilitated to debug the enforcement of backlash point, generally get counterbore and be of a size of 5mm, hold-down nut 2 thickness generally gets 5mm; First should carry out flow resistance tentative calculation and determine restrictor 3 pore size scope during design hold-down nut 2, hold-down nut 2 hole size should be greater than the maximum use aperture of restrictor 3; Restrictor 3 is by the pre-holes drilled through of minimum value of designing requirement pore diameter range, and inner port edge should keep sharp edge simultaneously, and pros and cons distinguished by restrictor 3 simultaneously, should carry out pros and cons mark; Restrictor and counterbore adopt free-running fit, and with easy disassembly, simultaneously in order to ensure flow resistance degree of regulation, the gap between restrictor external diameter and counterbore should be not excessive, generally gets 0.1mm.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (3)
1. a plunger connector air restrictor, is characterized in that, comprising: plunger connector (1), hold-down nut (2) and restrictor (3);
The head of plunger connector (1) is provided with counterbore for placing restrictor (3) and for installing the mounting groove needed for hold-down nut (2);
Restrictor (3) is arranged in the counterbore of plunger connector (1), and is pressed at the bottom of counterbore hole by hold-down nut (2);
By the negative thread of the outside thread of hold-down nut (2) and the mounting groove of plunger connector (1), be threaded between the mounting groove of hold-down nut (2) and plunger connector (1).
2. plunger connector air restrictor according to claim 1, it is characterized in that, the mounting groove size of the thickness of restrictor (3), the thickness of hold-down nut (2), plunger connector (1), counterbore size and mounting groove dimension of inner screw thread, meet after hold-down nut (2) is tightened against mounting groove, the end face that the end face of hold-down nut (2) is corresponding to negative thread flushes;
The hole size of hold-down nut (2) is greater than the maximum use aperture of restrictor (3);
The inner port edge of restrictor (3) is sharp edge;
Free-running fit is adopted between restrictor (3) and counterbore.
3. a using method for plunger connector air restrictor as claimed in claim 1 or 2, is characterized in that, comprise the steps:
Step 1: restrictor (3) is fit in the counterbore of plunger connector (1), carry out flow resistance tentative calculation to determine the pore diameter range of restrictor (3), wherein, gap fiting mode is adopted to install between restrictor (3) and counterbore;
Step 2: restrictor (3) is by the pre-holes drilled through of the minimum value of described pore diameter range;
Step 3: hold-down nut (2) is tightened against in mounting groove to compress restrictor (3) at the bottom of the hole of counterbore;
Step 4: hold-down nut (2) is rushed a little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588457.9A CN104401495A (en) | 2014-10-28 | 2014-10-28 | Plunger joint throttler and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410588457.9A CN104401495A (en) | 2014-10-28 | 2014-10-28 | Plunger joint throttler and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104401495A true CN104401495A (en) | 2015-03-11 |
Family
ID=52639188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410588457.9A Pending CN104401495A (en) | 2014-10-28 | 2014-10-28 | Plunger joint throttler and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104401495A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640423A (en) * | 2016-11-16 | 2017-05-10 | 上海空间推进研究所 | Flow resistance adjusting device of low-thrust liquid attitude control engine set |
| CN108661806A (en) * | 2018-03-19 | 2018-10-16 | 上海空间推进研究所 | A kind of flow resistance regulating device |
| CN112793810A (en) * | 2020-12-29 | 2021-05-14 | 上海空间推进研究所 | Detachable flow resistance adjusting module, method and system of space propulsion system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090038538A (en) * | 2007-10-16 | 2009-04-21 | 현대중공업 주식회사 | Orifice fitting assembly |
| CN201318801Y (en) * | 2008-12-19 | 2009-09-30 | 安徽金鼎锅炉股份有限公司 | Throttle ring device of waste heat boiler |
| CN201487929U (en) * | 2009-06-19 | 2010-05-26 | 中国瑞林工程技术有限公司 | Detachable and adjustable boiler forced water circulation throttling device |
| US20120060939A1 (en) * | 2010-01-28 | 2012-03-15 | David Schwartz | Tamper-Resistant Water Flow Restriction System |
| CN203517059U (en) * | 2013-08-30 | 2014-04-02 | 北京天诚同创电气有限公司 | Pipe joint connecting device with throttle ring |
-
2014
- 2014-10-28 CN CN201410588457.9A patent/CN104401495A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090038538A (en) * | 2007-10-16 | 2009-04-21 | 현대중공업 주식회사 | Orifice fitting assembly |
| CN201318801Y (en) * | 2008-12-19 | 2009-09-30 | 安徽金鼎锅炉股份有限公司 | Throttle ring device of waste heat boiler |
| CN201487929U (en) * | 2009-06-19 | 2010-05-26 | 中国瑞林工程技术有限公司 | Detachable and adjustable boiler forced water circulation throttling device |
| US20120060939A1 (en) * | 2010-01-28 | 2012-03-15 | David Schwartz | Tamper-Resistant Water Flow Restriction System |
| CN203517059U (en) * | 2013-08-30 | 2014-04-02 | 北京天诚同创电气有限公司 | Pipe joint connecting device with throttle ring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640423A (en) * | 2016-11-16 | 2017-05-10 | 上海空间推进研究所 | Flow resistance adjusting device of low-thrust liquid attitude control engine set |
| CN106640423B (en) * | 2016-11-16 | 2018-08-03 | 上海空间推进研究所 | The flow resistance regulating device of low thrust liquid attitude control engine unit |
| CN108661806A (en) * | 2018-03-19 | 2018-10-16 | 上海空间推进研究所 | A kind of flow resistance regulating device |
| CN112793810A (en) * | 2020-12-29 | 2021-05-14 | 上海空间推进研究所 | Detachable flow resistance adjusting module, method and system of space propulsion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206111487U (en) | Compressor valve organizes assembly structure | |
| CN104401495A (en) | Plunger joint throttler and use method thereof | |
| CN203052034U (en) | Metal ring sealing connection hoop flange structure with cylindrical ring | |
| CN208350290U (en) | A kind of pipe hydraulic pressure test fixture connector | |
| CN204422177U (en) | Pressure regulator test board | |
| CN203052043U (en) | Pipeline sealing structure used for matching of aero-engine dual-spherical-surface and inner cone | |
| CN203052035U (en) | Connection hoop flange structure with plane metal ring seal | |
| CN104455818A (en) | Composite transitional joint throttling device | |
| CN204628660U (en) | A kind of one-way valve | |
| CN203732107U (en) | Glass float flowmeter | |
| CN208057230U (en) | A kind of booster relief valve silencer | |
| CN103790693A (en) | Air inlet pipe of intercooling system | |
| CN203517075U (en) | Pipeline connecting assembly | |
| CN212254584U (en) | Closed-loop pressure maintaining and pressurizing detection system | |
| CN203614947U (en) | Engine joint component | |
| CN207908228U (en) | A kind of gas sampling connector | |
| CN203688175U (en) | Centrifugal pump air-tightness test device | |
| CN206478352U (en) | The structure that a kind of size water pipe is quickly transferred | |
| CN204357688U (en) | A kind of hydraulic pump outlet surge flask | |
| CN110146225A (en) | A kind of middle outer wing fuel delivery system pipeline air tightness tester and method | |
| CN205101204U (en) | Air throttle air inlet piping | |
| CN205013400U (en) | Pneumatic pumping unit | |
| CN206175764U (en) | Gas pressure regulator membrane lid assembly structure | |
| CN211189687U (en) | Regeneration flow stabilization control system | |
| CN109540527B (en) | Air inlet and outlet pressure wave simulation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150311 |